63473536 has 32 divisors (see below), whose sum is σ = 144517680. Its totient is φ = 27202560.

The previous prime is 63473521. The next prime is 63473539. The reversal of 63473536 is 63537436.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 63473495 and 63473504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63473539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34525 + ... + 36316.

Almost surely, 2^63473536 is an apocalyptic number.

It is an amenable number.

63473536 is an abundant number, since it is smaller than the sum of its proper divisors (81044144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63473536 is an equidigital number, since it uses as much as digits as its factorization.

63473536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70862 (or 70850 counting only the distinct ones).

The product of its digits is 136080, while the sum is 37.

The square root of 63473536 is about 7967.0280531701. The cubic root of 63473536 is about 398.9001787546.

It can be divided in two parts, 63473 and 536, that added together give a square (64009 = 253²).

The spelling of 63473536 in words is "sixty-three million, four hundred seventy-three thousand, five hundred thirty-six".